“…While earlier researches and reviews on this issue have generally concluded that major psychiatric disorders, and especially psychoses, were no more frequent in prison samples than in the general populations, (Guze, 1976;Coid, 1984), more recent studies since 1990 have reported clearly higher prevalence rates in prison populations mainly for substance abuse, psychotic disorders and mood disorders on Axis I and for antisocial personality disorder on Axis II of the DSM IV (Coté & Hodgins, 1990;Herrman, McGorry, Mills, & Singh, 1991;Koenig, Johnson, Bellard, Denker, & Frenlon, 1995;Brooke, Taylor, Gunn, & Maden, 1996;Jordan, Schlenger, Fairbank, & Caddell, 1996;Taylor, Leese, Williams, Butwell, Daly, & Larkin, 1998;Baillargeon, Black, Pulvino, & Dunn, 2000;Gunn, 2000;Hartvig & Ostberg, 2004). This discrepancy in the results may be due to a number of factors such as different inclusion criteria, selection bias, heterogeneous diagnostic procedures, lack of operational diagnostic criteria and insufficient sample sizes (Teplin, Abram, & McClelland, 1996;Andersen, 2004).…”